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Sudoku Xtra, written by Dr Gareth Moore
Sudoku Xtra 24
logic puzzle compendium
Printed puzzles from Dr Gareth Moore


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Comments and Results for 'Sudoku XV 1'

StateTypeTitleSizePlayedAvg timeRating (#users)YoursYour best
UnplayedSudoku XVSudoku XV 19x9110712:07Easy (114)--
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Your puzzle statistics First solution time distribution Overall puzzle statistics
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Slowest 10% not shown

Solution time without 'show wrong'
Slowest 10% not shown

Unaided first solution time
Slowest 10% not shown
Completed by159 users
Best time without any aid3:05 by oseyerus13
Best time with show wrong
or multiple sessions
2:45 by ahouchin
Average solve time with no or minor aid9:15
Average rating - all players1.9/10.0
Average rating - no aid1.3/10.0
Average rating - major aid1.6/10.0
Average rating - show wrong or
multiple sessions
3 comments (Add new comment)
Posted 30th Jan 2018 at 21:13
YusufT19 Rated puzzle: Moderate Completion time: 7:39 Used 'check puzzle' when incorrect
Posted 7th Jul 2018 at 10:53
Last edited by vsrawat 7th Jul 2018 at 11:01
vsrawat Rated puzzle: Hard Completion time: 46:52 Used 'show wrong moves'
This was again an extreme puzzle, in which, after some time, the remaining numbers are all well matched and don't give any clue for further move based on sudoku rules.

I have saved screen shots at the following locations for you to check. (uploading first time, I don't know how it works)

Posted 8th Jul 2018 at 10:42
Last edited by gareth 8th Jul 2018 at 10:44
gareth Administrator Daily subscriber Has not played this puzzle yet

The rules of this puzzle are that if there is no X or V then the numbers do not add up to either 10 or 5. This will allow you to easily solve your puzzles. For example, you can't have a 1 in the first cell of the second row of your puzzle '1' - if you did, it would add to 10 with the 9 next to it, but there is no X.

Full instructions for each puzzle type can be found by clicking 'Instructions' on any page, or from the link in the puzzle player.


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Sorry: Only those who have added the set of 100 Sudoku XV Volume 2 (click here to buy this set) to their collection can post comments on this puzzle.

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  • A yellow/light blue highlight in the time distribution charts highlights your time, where relevant.
  • Rating scores out of 10.0 show the average difficulty rating chosen by users, where 1.0 is "Easy" and 10.0 is "Hard".
  • If a puzzle is opened more than once, including by loading from a saved position, then this is potentially a significant aid so it is listed as being completed with 'multiple sessions' for the purpose of the best time/average rating displays above.
  • Minor aid is defined as no more than one use of 'Check solution' when incomplete and/or no more than one use of 'Check solution' when wrong; and/or using highlighting aids (show repeated digits, show broken inequalities and show valid/invalid placements [slitherlink] only). Major aid is any and all other use of the solving aids except for 'show wrong'.

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